The mangaThis section lists the characters of the manga Switch and their associated tropes.
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Known as the "brilliant new investigator" to most of the Drug Enforcement Division of the Kantō region, he is almost always focused on his work. He also often uses his charm and good looks to his advantage to gather information, whether from men or women.
- Disappeared Dad
- Forgotten First Meeting: with Kai. Also, Forgotten Friend, New Foe.
- It's All My Fault: Hal blaming his mother's death on himself.
- Ineffectual Loner
- I Work Alone: Hal becausehe fears losing his loved ones.
- Purely Aesthetic Glasses
- Taking the Bullet: To protect Kai.
- The Charmer
- Say My Name: To Kai whenever he switches as an attempt to wake him up. He even screamed his name during a training when he hadn't switched when he saw that his fighting skills were making him win the sparring against Kazami. This made Kai instantly lose the fight. Hal got screamed at by Asakura: "That kid could die because of you someday!"
- Smoking Is Cool
- Vitriolic Best Buddies: With Kai.
Kai Etou / Kai Kousaka
A 22-year-old new criminal investigator for Kanto Region's Narcotic Control Department. When conflicted with anything that involves pain or extreme emotional hurt to him, Kai might switch to a violent alter ego who has no problem in harming others, though Kai himself is gentle and reluctant to do anything dangerous or hurtful to others.
- Angst Coma
- Attractive Bent-Gender
- Berserk Button: When hurting / killing innocent people in front of him.
- Can't Hold His Liquor
- Creepy Child: After the traumatic experience.
- Dull Eyes of Unhappiness: When switching to his alter ego.
- Forgotten First Meeting: with Hal. Also, Forgotten Friend, New Foe.
- Happily Adopted
- Heroic BSOD: In the last volumen, when he remembers the truth about 'Switch', therefore, remembers his past.
- Heroic Sacrifice: Decides to destroy himself at the end of the manga to save Hal, since he promised him sixteen years ago that he would protect him.
- I'll Kill You!
- Slasher Smile: During his alter ego.
- Took a Level in Badass: When he defended Hal, however Kai was drunk at that time.
- Wheelchair Woobie