However, after Kyosuke woke up, Kyosuke didn't want to tell anyone else about his family's phone number. Kyosuke still needed time to recover his health. It would be troublesome if his mother and Kensuke saw the weak Kyosuke he was right now.
Kyosuke thought maybe he would be scolded by his mother again like last time, then Kensuke would also blame Kyosuke's stupidity for always getting into trouble. Kyosuke still needed time to calm down.
Kyosuke's disappointment with Kensuke has become the reason that they are not like when they were little. Back when he was little, Kensuke always knew Kyosuke's hiding place. Little Kyosuke often cried alone under the bridge after many other children bullied him. At that time, Kensuke was always present and comforted Kyosuke.
However, right now Kensuke didn't even have an inkling that Kyosuke was in any danger. Kensuke was disappointed at his twin brother's attitude like that.