Izuku Returns To Chaldea.

( P.S. All Of The Main Singularities, Pseudo-Singularities, As Well As Lostbelts Have Already Been Completed By Izuku. )

When Izuku Yagi was 4, he was diagnosed as Quirkless and after he was, his parents, the Pro Heroes, All Might and Green Tempest, began neglecting him and his twin sister and his now former childhood friends began bullying him and beating him up everyday. When Izuku was 15, he was attacked by a villain with a Quirk that allows them to randomly teleport someone someplace and was randomly teleported to Chaldea, where along with learning that he had mage ancestry, he also helped resolve all of the main singularities, all of the pseudo singularities, and also all of The Lostbelts as well. He also fell in love with many female servants, all of whom who also fell in love with him as well. However, Izuku only ended up dating 3 of them, with those 3 servants not letting any other servants date Izuku, which upset the other servants that were in love with Izuku.

However, just after Izuku completed The Lostbelts, those 3 servants cheated on him with someone in an event singularity and because of that, Izuku decided to suddenly leave Chaldea, only leaving a short note saying goodbye. Because of this, those 3 servants were de-summoned and all of the servants who were in love with Izuku became deeply depressed, with some even locking themselves in their rooms.

Thankfully, after 3 years, Izuku, who went back to Japan to go to UA after leaving Chaldea, where he actually awoke a Quirk, decided to come back to Chaldea after he graduated from UA, partly after Chaldea's new director asked him to come back to Chaldea as it's first ever own Pro Hero, however, mainly after he was told about how all of the servants who were in love with him were all still depressed that he'd left, with those who locked themselves in their rooms still in their rooms. Izuku also won't be coming back to Chaldea by himself as he'll be bringing his 2 adopted daughters along with him.