Please Help Me Find This Manga

fell asleep while reading and browser redirected to lady-first so I cannot remember the title. it is about a guy who hates unrequited loves (bc he witnessed his brother be heartbroken over one) so he calls out this guy who is obvi in unrequited love and says he'll help him. they are both in some club called travel planning club or something and there are only 3 members.

fell asleep while reading and browser redirected to lady-first so I cannot remember the title. it is about a guy who hates unrequited loves (bc he witnessed his brother be heartbroken over one) so he calls out this guy who is obvi in unrequited love and says he'll help him. they are both in some club called travel planning club or something and there are only 3 members.

Hello so i read a manga, it started with a girl playing bass in a park or at least a public area and she remembering her mom who was in a band and died and then she was alone with her older sister taking care of her, it only had 1 chapter back then so i'm sorry if i can't give anymore details but i was very interested and forgot the name so if anyone can give any good suggestion it would be highly appreciated thank you