On April 1st RY 367, he was assigned to the Spearhead Squadron in the First Ward barracks. The Spearhead Squadron had their photos taken to update the Processors’ personnel files, holding a board with their internment numbers as if it were a mugshot. Shin requested the personnel officer for a group photo, and he laughed when he saw Kariya Kujo, Kuroto and Matthew huddled together.
On April 5th, he and the Spearhead Squadron held a cherry blossom party to celebrate their formation squad. They watched the shooting stars together.
On May 12th 2148, he, Hariz, Io and Ochi were eavesdropping Daiya and Anju until Mikuri, Kurena and Kuroto returned to the canteen with the chicken eggs. He and the Spearhead Squadron ate at the canteen. He played soccer with the other boys, and they watched Kujo kicked the ball at Lev.
On May 22nd, he participated in the battle against the Legion where they lost Kujo. He was seen cleaning the canteen with Anju, Daiya, Hariz, Io and Ochi. He was present when Handler-One Resonated with the Spearhead Squadron.
On June 13th, Shin and Handler-One were talking, the others were congregating in their rooms or the dining hall, and their chipper voices could be heard from the distance. He wasn't present when Kaie calls her a virgin.
On June 15th, he participated in the battle against the Legion where they lost Kaie.
On June 24th, the Spearhead Squadron intercepted the Legion herded by the black sheep. He gasp in horror when he heard Kaie's voice among the Legion. Shin reports to Handler-One that nobody was hurt or killed on the mission.
On July 27th, the Spearhead Squadron were sent on a mission and they passed the spot where they had the cherry blossom party, they reminisce the party. He participated in the battle against the Legion where they lost Daiya and Lecca.
The Spearhead Squadron unanimously agreed Raiden would be the vice captain of the Squadron.
The Spearhead Squadron unanimously agreed Shin would be the captain of the Squadron.