If you're looking for manga similar to Brand New School Day, you might like these titles.
He was always by my side. ... So, I thought that I certainly won't fall in love with him
1 vote
Both of these are one shot romance manga about high school friends who begin to have feelings for one another. If you enjoyed one, you might enjoy the other.
Yuzuki is a girl with a problem: she has a brother complex and can't seem to get over the fact that her sibling, Kouta, is now dating someone. Soon after discovering the news, she runs into Atsushi-kun, a boy from a different school who has an uncanny resemblance to Kouta. Positive that their encounter must be fate, Yuzuki tries her hardest to get closer to Atsushi, but doing so might be difficult as he wants nothing to do with her!
1 vote
Both of these romantic one shots are about a high school girl who decides she needs to make new choices about the type of guy she should fall in love with. If you liked one, you'd probably like the other.
Ougonji Kogane has been absurdly wealthy her whole life, with the riches she obtained from the business she made in elementary school she has had everything she ever wanted, and now sets out to purchase romance.