Tamami Sekine

Tamanin is a very cheerful girl who is usually seen with either manga or trying to cosplay at every chance, which annoys Satoko "Sugi-san" Sugiyama, seen in chapter 21.5 where she attempted to dress as Cure Dream to a mixer, or during her pool trip with Akiko "Akko" Oohashi where she made her own custom made swimsuit, which was anime based and caused her to get odd tan lines on her whole chest as a result. She is also quite airheaded at times and slow to catching on to things, such as not ever noticing that Akko and Mariko "Mari" Kumakura have feelings for each other, or by the end where she tried to get in a photo booth photo with Akko and Mari, failing to realize that the two of them were a couple and wanted a photo alone, which caused Sugiyama great surprise that Tamanin had not noticed yet. Tamanin does have a determined side to her, as since Chapter 16, as she vowed to try really hard to get a good boyfriend who shares much of the same hobbies as her during her pool and beach trips.