Adam no Rokkotsu
NOT a realistic portrayal of DID Yuuma, in costume as the park's mascot, and a janitor are working at the same amusement park and meet when saving a boy from getting assaulted at the park. later that day, the janitor is introduced as a new roommate to Yuuma, but the janitor has a certain disorder which makes him a little different from others and he claims that he and Yuuma already know each other very well. he gets upset when Yuuma doesn't remember being close to or meeting him, but Yuuma really can't seem to remember...
Midnight Rain (CTK)
Ethan is living in poverty with a huge debt left by his father and needs 3 more years to repay it. Mike is a loner who spends his time arguing and fighting, and has just moved into the same neighborhood as Ethan. Ethan sees him fighting on the street one day and starts up a conversation about it when they meet at a laundromat. couple days later, Mike is fighting again and gets hurt horribly, but now he knows someone who can help him and who lives really close. same author as On Doorstep except this manga is better ngl
Come to Hand