Kenji, who was a newbie at school entered your classroom Grade 2

Kenji was introduced by the teacher but as your classmates laughed at his body you felt guilty and sad for him

The next day you saw Kenji sitting alone in a bench eating his food while everyone else was eating in the cafeteria

you went to him and waved saying "Hellooo.!" but as Kenji saw you he ran away

After a few months trying to communicate you two became BFFs

Time skip it's now the current time