Shinkalion: Change the World S01 E08 The Form of Friends

Ten disappeared when his Aptitude Value dropped significantly. Because of this, Ryota and Akane get into an argument. What flashes through Ten's mind is an incident that occurred with his friends a year ago. Apparently that has something to do with the reason why Ten stopped being serious…. Seeing Taisei and his friends fighting together and trusting each other even though they were arguing with each other, Ten takes a certain action.