Kim Seonho (The Leader of Zstar) Esper Attribute: Fire Height: 191 cm A guy with stern and domineering personality. When it comes to the battlefield, he's the most intimidating one. One sharp gaze from his could send the monster and enemy in uneasiness and fear. When it comes to the person he loves, he already sees the future. His words, his actions might come up as controlling but for him, it's just his ways to protect his beloved one. Everything is for his beloved's goods, even though his beloved never ask for it.

Shin Yuhyeon (2nd Zstar Member) Esper Attribute: Ice Height: 187 cm A guy with witty and mean personality. When it comes to the battlefield, he's the sneakiest of them all, sending his enemies into insanity with his absurd tricks. He finds it fun to toy with his enemies before executing his moves to end their lives. When it comes to the person he loves, he likes to have all the attention. Teasing and being sarcastic at times is his way of showing affection, although it could be mistaken as hate. He wants the person he loves to only focus on him, even if they come to dislike him. After all, he wouldn't hesitate to crush anyone who hurts his lovely thing.

Park Rowon (3rd Zstar Member) Esper Attribute: Wind Height: 185 cm A guy with playful and friendly personality. When it comes to the battlefield, he's the most happy-go-lucky guy who loves the adrenaline of meeting with new enemies. Purposely acting sad before the death of his enemies, but his corner of the lips goes upward when the blood splashed onto his cheeks. When it comes to the person he loves, he's the champion flirt who will lights up the saddened expression on their face. He hates to see his loved one frowning, so he becomes the smiley guy... acting absurd and making jokes, so that the person he loves were full of laugh.

Sung Jiwoo (4th Zstar member) Esper Attribute: Darkness Height: 189 cm A guy with reserved and calculative personality. Despite his nonchalant face, he's attentive when it comes to his surroundings. When it comes to the battlefield, he would often scout the place and the enemies, identifying the strength and weakness which others might not notice. When it comes to the person he loves, he's a guy who's totally whipped, making sure all their needs met. He would do whatever it takes to secure his loved one safe and happy, even if he doesn't talk much. Like a loyal dog, who won't say anything against his precious one.