Somewhere, I Will Find a Universe Where You Love Me

Ichiro has loved Yukiko for as long as he can remember. And tonight, the night of the summer fireworks festival, his dream of being with her is finally coming true.

Until tragedy strikes and takes her life moments after her confession.

Unable to cope with losing her, Ichiro throws himself off the roof of his apartment complex in an attempt to kill himself. When he awakes on an examination table instead, he is greeted by his best friend, a foreign super-prodigy named Amelia Grayson. She is different than he remembers. Older, and stranger. She tells him he is dead in this universe, that she saved him, and that the only way he will survive any longer is to follow her to another reality. Ichiro agrees, but on one condition-

She has to help him find another universe where he gets his happily ever after... no matter how many times he has to die in the process.

[Isekai - High Fantasy]