A shoujo school-setting manga. In it the female MC becomes friends with a really tough, violent girl ( I think she has a nickname like she-wolf or something ). There are also two male MCs. The female MC has a crush on one of the guys and tries to get him to fall in love with her. The romance is a big part of the story but the main storyline is the friendship between the female MC and the tough girl.

Towards the end of the manga the female mc gets kidnapped and calls out for the tough female best friend, rather than her boyfriend and she saves her.

seems like Gaccha Gacha