It's Kimetsu no Yaiba X Male Reader. Pretty straight forward. Male X Female.

What if the Fourth Holy Grail War had an additional Servant? What if this extra Servant was the single most overpowered jerk summonable? No, not THAT overpowered golden jerk. This one makes him look like a saint with the sheer abundance of his ego. Forming an unlikely contract with an exasperated, and not too sane, Master, the 8th Servant's arrival causes the events of the Heaven's Feel to radically change. For the better or worse? That remains to be seen. But he doesn't care about that, he'd rather disobey his Master and annoy everyone as much as physically possible.

After finally getting confidence in her English, Suisei Hoshimachi, one of the world-renowned idols of Hololive, made a new discord account to try to make friends with overseas fans. After stumbling upon your server, you welcomed her as a friendly first impression, not knowing it was Suisei. But what happens next when Y/N finds out that it was none other than his idol, Suisei, who uses the account? What kind of encounters will the two have? Possibly love? Who knows?

Illus: Twt: @TorinoAqua Edit: Me "We've been friends for as long as I remember. It's about time we end this friendship of ours... I don't ever... want to see you with another girl... It hurts me so so much to see you hurt yourself over and over again... I love you, you damn idiot!" So I've been wanting to write this fic for quite a while now. Ever since I've written the first chapter of my Rushia fic, I contemplated on whether to make an Aqua or Senchou or even a Kanata fanfic at one point. In the end, I ended up deciding on everyone's favorite Ten- I mean Devil, Towa! In any case, Happy Birthday Towa!