Too short to understand any of this 😄

They are extras for other stories (see the author's notes)

In the first one, light-hair guy hears dark-haired guy is not coming home for winter vacation. He goes by train to see him.
He sees him with his classmates/club andhe's busy, so he doesn't wanna intrude, as he looks happy.
Friend quickly notices him.
Light-hair guy is met at train by dark-hair.
Light hair tells him using signs that he loves him.
Dark-haired looks at train and realizes he needs to take his next vacation home. Why?
He signs the "love sign." Meaning he loves him back.