Asagao wa Yoru kara Saku
Yuggen can see (forgot his name)- h after he passed away. Suddenly seeing him in the classroom startled him. His first love wanted his help to get rid of stuff and unfinished businesses. Such as deleting his search history, returning borrow Iteams, and apologizing to friends from previous arguments. After yuggen finish all those task. Yuggen went to speak with his mom and solved a misunderstanding (First love) had with his mom. After all the unfinished business became finished. (First love) was still there and wondering why. But notice yuggen was the reason why his spirit was still stuck in earth. As Yuggen did not want him to move on as he is his first love. Luckily they work it out in the end and ( first love) moves in to the after life.
Danshoku Rei no Sumu Apato