Responses
Sorry idk how to give you a direct link to it, but I'm pretty sure it's Ibitsu na Koi no Seesaw Game
I don't think this is it, but maybe this one? http://www.mangago.me/read-manga/anata_no_tame_nara_doko_made_mo/
Anonymous is right. I remember well as discussing a lot about "Aruse"
The first two were right, thank you!
So it's pretty popular I think but it's about this detective guy who can't catch this one criminal who constantly steals priceless things, and to get them back he's always forced (literally forced) to get dirty with him. If it helps at all, the last chapter I had had the main character yelling "Aruse!!"