Shironaga

Shironaga is the femlash ship between Tsumugi Shirogane and Angie Yonaga from the Danganronpa fandom.

Canon
The two rarely interact in-game, although, Tsumugi was one of the few students who voluntarily joined Angie’s student council club in Chapter 3. There is a scene that appears in the same chapter of Angie hugging Tsumugi, and encouraging her to join the the student council, which fueled the ship more.

There is a secret event involving Himiko, Tenko, Tsumugi, and Angie in a changing room, getting ready to go swimming, in which Angie happily asks if she’s allowed to touch Tsumugi’s breasts, referring to them as “big”. Tsumugi is also one of the few students to cry over Angie’s demise, and she stated she’ll bring her killer to justice.

However, it is possible Tsumugi was faking her friendship with Angie after the reveal of her being the mastermind in Chapter 6, even though Shuichi Saihara did point out she seemed rather upset over Angie and Gonta Gokuhara’s deaths, but Tsumugi ignored his comment.

Fanon
The ship slowly grew as a result of the small ship tease between the two, Angie hugging Tsumugi, and asking her if she’s allowed to touch her breasts. This has brought some fans into questioning if there is a one-sided attraction on Angie’s side. Another reason includes the similarities of their talents, with both having artistic talents, Tsumugi being the Ultimate Cosplayer, and Angie being the Ultimate Artist. However, the ship is overshadowed by Angie and Tsumgi’s more popular ships. (Shinnaga, Kaemugi).