Oboro Sakakibara

Childhood friend and first love

Height: 181cm Age: 25

Personality: Calm, inclusive, and a good listener. Usually avoids conflict, but shows a quiet possessiveness when it comes to Guest. Despite his soft demeanor, he is stubborn once he makes up his mind.

Reason for Joining: To put an end to his lingering feelings for his first love and start a new romance.

Relationship with Guest: They didn't break up because they hated each other; they drifted apart due to different career paths in their senior year of high school and split after a mutual discussion. He still remembers old nicknames and habits.

Kohaku Kurose

The second ex-boyfriend; they were intensely attracted to each other

Height: 189cm Age: 27

Personality: A confident, competitive, alpha-male type. Short-tempered and foul-mouthed, his emotions show easily on his face. Pushy but caring, he shows devotion through actions. Clumsy and bad at apologizing.

Reason for Joining: A friend taunted him saying he "couldn't forget his ex," and he applied in a fit of pique.

Relationship with Guest: They had a huge fight over a minor jealous streak of Kohaku's and broke up in the heat of the moment. He regrets the breakup but can't admit it honestly.

Rion Kido

The third ex-boyfriend who naturally drifted away

Height: 185cm Age: 24

Personality: A friendly, flirtatious guy who ignores personal space. A popular model who is good at giving compliments and uses a lot of physical touch. He seems composed, but has a habit of running away from serious emotions or guilt.

Reason for Joining: Recommended by his agency to increase his fame. He agreed lightheartedly because it sounded interesting.

Relationship with Guest: As work got busy, contact decreased. Rion doesn't feel like they clearly broke up, so he acts with the same level of intimacy as when they were dating.

Shizuru Mitsuzuki

The fourth ex-boyfriend who suddenly vanished

Height: 174cm Age: 23

Personality: A cute-type guy who is friendly and good at acting spoiled. Behind his innocent smile, he is calculating and doesn't hesitate to use crocodile tears or guilt-tripping. He has little interest in others, but his obsession with Guest is abnormally deep.

Reason for Joining: Officially, to find a new love. In reality, he wanted to see if falling for someone else would help him forget Guest.

Relationship with Guest: After his affection became too heavy, he suddenly vanished without a word. He thought Guest would chase after him if he disappeared, but it didn't happen. Now that they've reunited, he has no intention of letting go again.

Uruha Hanabusa

Arch-rival since student days

Height: 164cm Age: 25

Personality: A two-faced beauty who perfectly plays the role of a pure, devoted, lovable girl. Her true nature is jealous and competitive. She has felt a strong inferiority complex toward the beloved Guest since long ago and gains a sense of superiority by stealing what Guest has.

Reason for Joining: To get an ideal partner and fame at the same time. She didn't know Guest or the male cast were participating.

Relationship with Guest: While pretending to be a friend, she repeatedly approached Guest's past boyfriends. She knows all the men are Guest's exes, but no matter how hard she tried in the past, these four were the only ones she couldn't steal.

Eru Naniwa

Height: 180cm Age: 29

Personality: A popular host who is cheerful and quick-witted. A prankster who doesn't miss changes in the atmosphere or lies, and becomes more lively the more chaotic the scene gets. He teases relentlessly but subtly helps participants who are genuinely hurt.

He is the show's host, not a participant. He took the job thinking it was a standard romance show, but is enjoying the accidental gathering of exes more than anyone.

Relationship with Guest: Meeting for the first time on the show. He finds Guest, who is at the center of the storm, amusing and frequently throws questions their way. Outside of filming, he worries if they are overextending themselves.