13 Works by SeiiiVi
Listing Works
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Summary
Dating a younger guy was surely one of Sangwon’s biggest miscalculations in life.
Because the moment Sangwon handed Anxin the documents that had been messing with his head the past week, the younger demanded he sit on his lap or he’d refuse to work on them any longer. He had also refused to drink his morning coffee with the excuse of Sangwon being the only shot he needed—his words, not Sangwon’s. And despite how hard Sangwon tried to give him motivation, he concluded that complying was the only way to get him through his day.
"C'mon, just let me hump you for a while, hyung,” Anxin whines. And here Sangwon was, on his lap, fiddling with his tablet to sort out his degenerate of a CEO’s schedule as said CEO desperately tried to coax him into another one of his perverted fantasies. Sangwon glances at the table and sighs with relief. At the very least, Anxin got through half of the paperwork. “You didn't even let me do anything in the shower.”
Sangwon glares and nudges Anxin’s nose with his stylus. “I only agreed to shower with you because you promised you wouldn't do anything.”
TLDR: a day in the life of a perverted CEO and his lewd secretary, ft. overworked coworkers
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Fuck, he didn’t want to seem vulnerable, but here he was, cursing his mismatched reflection in their bedroom mirror. With anguish and a hint of frustration, he put on his white shirt and was about to remove the panties until—
“Baobei, you’ve got to see this—”
Sangwon freezes. Anxin’s stream wasn’t supposed to finish until another hour or so, yet here he was, standing at the doorway, eagerly showing off his phone. But the excitement on his face was morphing into an unreadable expression, and Sangwon thinks, Oh my god, he’s so disgusted to the point he wants to break up with me.
“I can explain—”
Anxin shuts the door, causing Sangwon to flinch even though it wasn’t all that loud. The older watches him with caution, studying his movements until he finds the younger plopped onto the bed right across from him.
“Hyung, can you do a 360?” Anxin asks with a serious look on his face.
Sangwon blinks twice. “What?”
Alternatively, bunny hybrid Sangwon wears lace panties to have sex with his cat boyfriend
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Happy Valentine's! (Don’t Give Me Those Valen-thighs!) by SeiiiVi
Fandoms: Blue Lock (Manga)
16 Feb 2026
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“But I need a reward.”
“Thighs?”
“For the last fucking time, no!”
Kaiser looks him dead in the eyes with a contemptuous glare. “I’m not passing to you.”
“As if, idiot. I have soccer morals.” Isagi’s done the math—ironic because he’s bad at it—the teacher always gives back test papers three days after, because he’s a workaholic, and that day falls on the 14th. February 14th, to be exact, which just happens to be Valentine’s Day. “But if I fulfill my end of the deal, I want you to make me chocolate.”
Is it wrong to want to receive chocolate from the guy you like?
TL;DR: Isagi has a fat crush on his family’s host student and hatches a plan to get a Valentine
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Isagi chuckles, catching him off guard. “Ah, well. I won't get the chance to see him with a milk mustache. He’d definitely look fucking stupid, righ—”
Kaiser bites his palm. “You—” And again. Isagi flinches, drawing his hand back. “You both are seriously so mean…” He repositions himself, then swiftly picks up Kaiser. It’s the same maneuver as last time, and Kaiser won’t fall for the same damn trap again, so he—
“But I guess that’s why I like you guys so much.”
Alternatively, cat Kaiser hates his mortal enemy, and Isagi (who is said mortal enemy) tries to get the pompous kitten to warm up to him.
Series
- Part 4 of ❄️Fel-ISKI Navidad🧩🌹❄️
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It's Definitely Not a Meet-Cute If You're Not Cute at All! by SeiiiVi
Fandoms: Blue Lock (Manga)
17 Dec 2025
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Isagi puts the napkin down. “What’s your problem?” he accuses.
“Nothing,” he shrugs. “I don’t have anything against you.” The guy resumes his reading, casually ignoring the glares from his overly furious companion.
“Then why are you being so rude to me?”
The stranger closes his book, then rolls his eyes before sighing, “You think you’re so special, don’t you?”
“Ha, what’s that supposed to mean?”
He looks at him unimpressed. “Well, let me break it down for you—news flash: I don’t like guys who try too hard.”
“Who said I was trying to hit on you!”
TL;DR: Isagi just wants to read his manga, but his (pretty and shitty) companion won't let him exist without ruining his day
Series
- Part 3 of ❄️Fel-ISKI Navidad🧩🌹❄️
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“I like your messy bun,” he mentions casually as Kaiser finishes tying his hair.
“You wanna fuck me in it?” he teases.
Isagi sighs, “Can’t you just be normal and let me point out things I like about you?” Sometimes, Isagi questions if Kaiser actually believes what he says.
“I don’t know.” Kaiser takes a bite of his food and chews. Isagi notices the corners of his cheeks rising. It’s slightly hidden and could be overlooked, but he doesn’t forget to mentally store that moment in the crevices of his mind. “I don’t think there’s anything to like.” He doesn’t miss the misery in his tone, despite it being masked with a smile. It’s lonely.
But he doesn't point it out. “Then maybe if I continue sticking around, I’ll be able to show you.” Isagi takes the first bite of his dish. He looks up again to see Kaiser eat, and somehow, it actually tasted even better.
“You into body worship?" Isagi almost chokes for the second time that day.
Or: 5 times Isagi finds Kaiser weird and 1 time Isagi matches his weirdness
Series
- Part 2 of ❄️Fel-ISKI Navidad🧩🌹❄️
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“Just four?” Isagi eyes him skeptically, because it’s Michael Kaiser, and Michael Kaiser is not the type of person who’d donate to charity on a whim. He’s the devil incarnate—there’s got to be a catch.
“I’m actually doing you a favor, Yoichi! Become my chaperone for a few hours, and you can go spread your jizz all over my card or whatever nasty shit you’re into!”
“Oh for fuck’s sake, Kais—”
“Are you going to or not?”
Isagi takes a huge breath and agrees—albeit reluctantly. He’s just made a deal with the devil.
Alternatively, Isagi wants to complete his deck of cards and gets dragged along to Kaiser’s photoshoot. Chaos ensues.
Series
- Part 1 of ❄️Fel-ISKI Navidad🧩🌹❄️
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“So? That doesn’t mean anything.” Rin doesn’t understand Sae at all. There was no use in pointing out something so frivolous. It wasn’t like it affected how Rin played.
“You and Isagi… ever since you guys ended it, you looked… sad.”
Ha. Rin can’t believe this. What is Sae even talking about? He’s not even a relationship therapist so he should just cut the crap.
“And what’s that to you?” Sae doesn’t care about Rin, and it’s been that way since he came back from Spain. He despises Rin for being weak, loathes him because he isn’t enough, they weren’t enough.
tldr: isagi and rin break up, rin's dysfunctional brother appears, and rin gets back the love of his life
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Kaiser hums. “I thought marriages were supposed to be beautiful.” Isagi lets go of his hands but entraps him with his arms instead, almost as if to say, sorry isn’t enough, but I still want to hold on to you. Kaiser leans in to the touch.
“But ours is beautiful, Micha.” Perhaps this was the last chance Isagi had to get rid of him, discard Kaiser like the subhuman trash he is, because Kaiser wants to stay, devour Isagi for all his worth and test if he actually has the patience and commitment to hold him tight.
Or, Kaiser wants a divorce, and they have sex like the stupidly in love couple they are.
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“So, you seriously think this thing is going to work?”
“A hundred percent,” he nods with a level of profession, so sure of himself because why else would he be the heir of the Mikage Corporation if he wasn't?
“You think Nagi’s going to confess when you have a boyfriend?” It’s a hole in his “perfect” plan, and Rin has to point it out because he’s not going to embarrass himself and fail like some fucking loser. He’s Itoshi Rin and he isn’t a failure.
“Yeah, why not?” Reo looks confused, not grasping what Rin is implying because he’s too much of a lovesick idiot to comprehend the flaws of his ideal world.
“So you think he’s a homewrecker?”
“I mean, who wouldn’t homewreck for me?”
Oh. Rin forgot that Reo and Nagi were one of a pair. Both complete idiots for each other.
Yeah, this is going to work.
(Alternatively, an isrn and ngro au where Rin and Reo fake date to get their respective idiot crush to confess first.)
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XOXO Your Dear Future Boyfriend by SeiiiVi
Fandoms: Blue Lock (Manga), Blue Lock (Anime)
08 Jun 2025
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“What do you want me to do to get you to like me?”
“Seduce me?” Rin tries not to think of the marks and bruises he saw in the mirror. Did he have to do something so scandalous to get Isagi to look at him? Scratch that. Rin throws his chopsticks at him.
“Hey!” Isagi dodges them by a hair. Rin loathes that he’s an athlete.
“Be serious.”
“Honestly, you wouldn’t have to do anything, Rin. Since I was pretty head over heels in love with you back then.” Isagi stretches his arms. “So just relax and let the future unfold by itself. We’re destined to be together after all.”
Alternatively, Rin switches bodies with his future counterpart while Isagi fucks with him (lovingly).
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And then, he fucking sees it.
Isagi and his fan at the center of that shitfaced Jumbotron.Alternatively, an isrn kiss cam fic.
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√2 (I Feel Irrational Around You) by SeiiiVi
Fandoms: Blue Lock (Manga), Blue Lock (Anime)
09 May 2025
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Summary
“Ah that reminds me, what do you want to bet on this year?”
The competition bets. Rin almost forgot about them. They have a tradition of betting on things during individual matches. A “whoever wins gets the prize” kind of thing but the only actual prize is saving your dignity because the loser always ends up having to do something humiliating.
“Not sure. You can decide.” Rin doesn’t give it much more thought. It’s already been decided that the bet is going to ruin one of their lives and Isagi’s the one who usually comes up with those half-baked punishments, so he’ll just leave it up to him.
“Since you’re not sure… then how about you go out with me?” Isagi asks, bashful and somewhat meek. What. “Well if you lose to me, that is,” he clarifies, placing his hands in a calming position.
;Or the isrn mathlete au nobody asked for