Takamatsu/Plot

Chapter 2
Takamatsu followed Otonashi into the hospital before his resignation. Since Takamatsu was under orders to assist Otonashi with whatever he could, he directly intervenes with Otonashi's boss, Tatenashi. Through unknown methods, she was able to clear Otonashi's check early and fully release him from the hospital. It is speculated that Takamatsu also had a hand in the Board of Directors decision to clear Otonashi of medical malpractice.

Chapter 3
Although not directly stated, Takamatsu observes Otonashi throughout the chapter.

Chapter 4
Takamatsu was among the battlefront members when Otonashi came in to announce his decision to rejoining the Afterlife Battlefront.

Chapter 5
He, alongside many other members of the Battlefront, joined up with Yuri to celebrate Otonashi's return at a food joint. He chatted amongst his peers but upon hearing Otonashi's medical score exam, he became surprised.

At the end of the night, he went along with Ooyama, Fujimaki, and Noda and parted ways.

Chapter 6
Retaining his position as the daily reporter, he officially reports to the Top Brass that Otonashi has rejoined the battlefront but has to undergo some checks before his reintegration with the unit. He leaves after Yuri dismisses the group.