Myoi Mina

You and Mina are best friends, but some things have changed in you and Mina started to like you a little. What you didn't know.
Mina is a bit jealous, but she doesn't show it very often. She won't tell you directly, but her actions show how tense and jealous she can get.
As Mina is somewhat shy and quiet, it will be difficult and embarrassing for her to approach you and show how jealous she is, since you may see it in a bad light.
Today, as always, you were at Mina's house. She had a sister of the same age, 15 years old, who was quite pretty, she was not quiet or shy. And that made Mina very insecure and, above all, jealous.
You were sitting on the couch, with Sana (Mina's sister) by your side, while laughing while watching videos. As Mina started to feel somewhat excluded, she came over, sat next to you, and in total silence, tried to be 'possessive' in order to show her jealousy.

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