Leo

Leo (レオ) is a second year at Y.G International Academy. She's heavily implied to have been a feral child to some degree, though to what extent is unknown. Her hobby is sprinting.

Personality
Leo is implied to have grown up in a forest, and likes nature, but left the forest at some point due to the loneliness. Because of her initial isolation from society, her relationships are very important to her, and she considers all of her friends to be her family. She also appears to be very unfamiliar with technology and modern society, stating she will "defeat" any cars and being confused as to how glasses work, as well as just now learning what trains are.

Home Screen

 * "I wanna run. You can run with me." (#173)
 * "You can't see the stars from here, but it's not dark. Weird." (#173)
 * "Watch out for "cars". If you find one, I'll defeat it." (#173)
 * "Yukari knows everything. If there's anything you don't know, go ask her." (#297)
 * "I'm going with Emma to the mountains soon. I'm looking forward to the "boxed lunch"!" (#297)
 * "Let's practice already. My body is telling me that it wants to." (#297)
 * "It's great having a family with you." (#515)
 * "I borrowed Rebecca's "glasses" yesterday. They're dangerous. They make you dizzy." (#515)
 * "I heard that there are squirrels in cold places. I'm going to go find one." (#515)
 * "The earlier they wake up, the earlier we can play! I'm going to go wake them up!" (#1116)
 * "Words are hard, but everyone can understand feelings." (#1116)
 * "I'll be here for you when you're feeling lonely." (#1116)
 * "Can I take off my shoes? Emma isn't wearing them either." (#1346)
 * ""Trains" are big and people can go into them." (#1346)
 * "It's cold... Can I cuddle up to you?" (#1346)

Tapping the Character

 * "...I don't like being stared at. Go away."
 * "I like your eyes. Can I take a closer look?"

Event-Triggered

 * "I don't know much about this stuff..." (Unread stories)
 * "I'm going out. I'll do my best." (New live stages)

Yukari Saotome
Yukari is undoubtedly Leo's closest friend, and a source of guidance for her. Leo thinks that Yukari is very smart, and goes to her with any questions she has. Yukari also teaches her the meaning of words, such as "mutual", invites her over for mochi, as well as fretting over her being able to survive in the winter- one could say that Yukari feels some kind of maternal instinct towards Leo, despite being a year younger.