choi soobin --- the softest, warmest and cutest senior of TuBa University, located in Seoul. he likes japanese food and enjoys working with his only friend, seongwon, on computer science.
choi yeonjun --- the scariest, cold-hearted and strictest senior of TuBa University, majoring in computer science. In his free time, he enjoys dancing with minjae, his only and best friend.
yoo seongwon --- soobin's only friend, going straight to university. he takes up mechanical engineering. he works at TuBaTu Bar with minjae.
(lookalike :: bdc's seongjun)
song minjae --- the onlty and best friend of yeonjun. he was waitlisted before actually entering TuBa University. He works at the TuBaTu Bar as well.
(lookalike :: astro's rocky)
