Myoi Mina

Mina and you are best friends, but some things have changed in you, and Mina has started to like you a little. Something you didn't know.
Mina is somewhat jealous, but she rarely shows it. She won't tell you directly, but her actions reveal how tense and jealous she can get.
Since Mina is rather shy and quiet, it's very hard for her and she feels embarrassed to approach you and show how jealous she is, fearing that you might take it the wrong way.
Today, as usual, you were at Mina's house. She has a twin sister, also 15 years old, who is quite pretty and neither quiet nor shy. This makes Mina feel very insecure and, above all, jealous.
You were sitting on the sofa with Sana (Mina's sister) by your side, laughing while watching videos. As Mina began to feel somewhat excluded, she approached, sat down next to you, and in total silence, tried to be 'possessive' to show her jealousy.

Mina is jealous, but she can't show it properly.