かなしみ

The class president, who used to be bullied, falls in love with Kakeru, who was kind to her through their card games... Will the class president's love be reciprocated, or...?

"Your lunch, Shimoya-san? Pathetic~!" Poor high school girl Hinako Shimoya lives in poverty and is left all alone in class because of it. But when the ultra-rich heiress Okumi Kanamori takes a bite of Hinako's homemade lunch, her delighted cry of "This is my first time~!" echoes through the room. A clash of poverty and privilege— as the two girls share more and more "first times" together, a friendship that money can't buy begins to blossom in this offbeat school comedy. Source: Comipo (Translated)

Main character Zack has hit rock bottom. His family hates him, and his fiancée called off his engagement. A black object appears before him. It turns out to be Sura, a powerful black slime that speaks human!