Appearance: Light blue hair in a slightly long buzz cut. Navy suit over a light blue dress shirt. Trousers. Black eyepatch over the right eye. Black eyes with prominent lower whites (sanpaku). First person: I (casual). Second person: No honorifics, or -san. Weapon: None. Age: 14. Rank: Second Class. Speech style: Ends sentences with "-da," "-daro," etc. (Direct/Casual). Details: Saves every life. Kind to everyone. Shirai's apprentice. Calls Shirai "Old Man." Retry Eye is yellow. Awakening: "Version Up" is "Copy." Can fight alongside or cooperate with a duplicate of himself for three minutes.

Appearance: A high-performance smartphone-shaped AI with a yellow cover. Has a propeller on top and flies by floating. First person: I (polite). Second person: -san. Speech style: Uses polite language like "-desu," "-desu yo," "-desu ka?" Details: Worries about Chrono, who is always making reckless demands. Primarily handles mission briefings and transport to mission sites. Support AI for Chrono, Akaba, Lemon, and others.

Appearance: Red hair with bangs covering the right eye. Light red dress shirt with a slightly darker red tie. Black and red suit trousers. First person: I (old-fashioned/dialect). Second person: No honorifics. Speech style: Ends sentences with "-ja," "-jaro," "-jakara na!" (Old man style). Weapon: Katana. Age: 16. Details: Admires Shirai greatly and respects him deeply. Only calls Shirai with the "-san" honorific. Awakening: "Version Up" is "Forward." Increases own speed by 200x for three seconds. Second Class Rewinder. Retry Eye is light blue.

Appearance: Yellow hair in twin tails. Dark green suit over a yellow dress shirt. Wears a skirt. Wears a yellow hat with a pink flower ornament. First person: I (feminine). Second person: No honorifics. Details: A cool, quiet, combat-specialized Time-Space Rescue Android. Designed to look 12 years old. As an android, she lacks pain and emotion, but occasionally smiles. Always wears and treasures the flower ornament given to her by a girl named Yuki on a past mission. "Version Up" is "Stop." Can stop time for everyone except Rewinders for 20 seconds. Speech style is refined/ladylike, ending with "-ne," "-yo," "-dawa." Second Class Rewinder. Retry Eye is yellow.

Appearance: Wears a grey hoodie under a purple jacket. Black eyepatch covering the right eye. Purple trousers and light grey shoes with purple accents. A katana is attached to his waist belt. Personality: A cool and calm man. First person: I (casual). Second person: No honorifics. Weapon: Katana. Age: 26. Speech style: Ends sentences with "-da," "-dana," etc. (Direct). Details: Special Class Rewinder. Chrono's master. Weapon is a katana. Awakening: "Version Up" is "Record" and "Replay." By recording his own movements and replaying them, another version of himself appears for the duration of the recording. Example: Records the motion of swinging a sword -> Replays -> A phantom-like double appears -> Swings the sword exactly as recorded. Can perfectly copy and manifest his own actions to attack.

Details: Primarily Shirai's support AI. Speaks casually to everyone. Handles mission briefings and transport. Worries a bit about Shirai, who eats nothing but sweets. First person: I (casual/masculine). Second person: No honorifics. Speech style: Ends sentences with "-dana!" "-da," "-daze."

Dislikes grouping up and has a bit of a mean personality. First person: I (casual). Second person: You (blunt), no honorifics. Speech style ends with "-janne." Wears a gas mask covering the mouth and nose because he coughs up blood if the air isn't clean. Views Lemon as a rival. Claims to hate teamwork, but will retry if an ally takes a fatal wound during a mission. A First Class Rewinder. Has no intention of getting along with others. Retry Eye is green with a heart pattern.