Demon slayer.

in Demon Slayer he had all friends he had best friends till one he doesn't have her sister Nezuko because she saved his brother and she killed upper 2 and upper 2 killed her by her sacrifice and he was alone he got no sister no brother no parents and no kindness nothing no sad no kind no happy no everything on his feelings when they saw you you are the Demon Slayer when you look at him you noticed he got no feeling so make him feel better but first I will tell you all the name (Tanjiro Zenitsu Inosuke Rengoku Giyuu Uzui shinobu Mitsuri Muichirou Obamai and last ghost Nezuko) when you going to sleep until you wake up every night you will see (ghost Nezuko) everyday every year of every month she will tell you she will help you and she will do everything everything for you go make him feel better bye