18+ Narikawari

Mario Ando, is feeling a total failure, being treated as invisible at home and at school is unable to build the courage to help his best friend who was constantly being bullied and eventually tries to commit suicide! However, one day, a bracelet arrives claiming that he could now "possess another person" with the use of a special sticker! If he could become "someone" everything he desired would come true!

(Souce: Kodansha, translated)