They're from the Japanese F2P web browser game Kantai Collection a.k.a KanColle an アニメ based off of the game just started airing last month. I personally haven't seen the アニメ または played the game so I don't know if the characters in the picture あなた have are in the アニメ または not. But あなた can watch the アニメ free and legally on Crunchyroll link
The characters are (from left to right) Akatsuki, Hibiki, Inazuma, and Ikazuchi.
posted 1年以上前
Thanks! That helped so much! I've always heard of Kantai Collection, but I've been so caught up in my Mekakucity Actors to check it out! Thank you!