Manga by author Tsukishima Haru - Status ongoing

Makoto is suddenly confessed to by her narcissistic childhood friend Kikuchi Reita. Not even just any confession, he stands in the street and publicly says If you want a boyfriend that badly, I don't mind going out with you. Which was obviously a no, since Makoto has never considered Reita to be a man, especially a man of interest. What will become of her daily life now that Reita insists on her going out with him?

From Lemonade Scans:Sakura confesses to Hatano-kun one summer and is rejected instantly, but does not have time to fall into the depression that returns to her house to meet her new "Younger brother". What she never expected her "little brother" ended up being bigger than her How can you carry out now on more Kaede and Sakura