An in-game screenshot
True Heart Graffiti (トゥルーハートグラフィティー) is a dating simulation which seems to reference the same-genre games To Heart and Sentimental Graffiti. One of the characters is a twin-tailed tsundere named Sayaka who resembles Saaya. Switch is often seen playing the game, resulting in Bossun attempting to play it as well. Yoshihiko claimed to have already beaten it in its entirety.