❝ The words which are written by them, sometimes leave several traces of the untold meanings and histories. ❞

Stands by 180 cm and 70 kg, he is considered as an average tall and quite slender man. Even so, his body is considered firm since he regularly exercises. He has black hair, and although his skin is fair-coloured which is an average one, the combination of a pair of blue eyes and his hair makes him outstanding among his surroundings. As for his daily appearance, he has piercings and a neat also simple style for young people, reflected his personality.
| Romanized. | Sasaki Ryūsei |
| Birth Place. | Tokyo, Japan |
| Birth Date. | September 9, 2003 |
| Nationality. | Japanese |
| Sex. | Male |
| Race. | Human |
| Occupation. | College Student |
| Faceclaim. | Dan Heng (Honkai: Star Rail) |
ㅤThe data is written based on his recent birth certificate and identification card.ㅤ
Sasaki Ryūsei is usually quiet and reserved. He loves spending time alone. He talks only for some essentials such as relating to job or discussing. However, it doesn't mean that he's totally distant, he just needs time to observe people who approach him or vice versa. He is also seen as modest and gentle in daily.Once he's comfortable around his surroundings, he will be an easy going and even thoughtful person. He is tidy, whether about time, place, and lifestyle. It makes him quite perfectionist, yet he's good at controlling his feeling and believes in his process to achieve his will.
He majors in Information Science at Tokyo University.
His blood type is A.
MBTI test's result: ISTJ
He enjoys reading and exercising.
He is also good at cooking since he lives alone.
He prefers boil-processed food over fried-processed food.
On the other side, he claims that he is not good when it comes to arts; drawing, singing, and dancing.
He has an habit to spin anything on his hand when he is in deep thinking, it is usually a pen.
It is quite noticeable that he is into demisexual and demiromantic due to his past.
His last name is adopted from his mother's maiden name.
trigger warning : implied suicide attempt and thoughtsread with own risks.Sasaki Ryūsei rarely talks about his past, and people around him mostly know that he has been living alone in apartment near his campus. In fact, his parents are still alive, yet they—father, mother, and he—separate each other. The reason is also a cliché one, it is caused by his parents' divorce.When little Ryūsei even barely could read and write, both of his parents often jumped into domestic conflicts, to the point that the father decided to leave them and the mother raised him alone until middle school. Back then, he decided to study hard so he could help his mother in the future, as mother told him he needed to be good at school to become more reliable. He was the top student academically even when he entered middle school.At the same time, he knew that his mother actually opened up and met someone new. However, it was implied that his mother actually excluded him for her love life, even hid her identity as a single mom, and not revealing her biological son since she left a note with a passbook, debit card, and several documents beside it.❝I'm sorry for not being a good mother, but I also need my happiness. I give you my account so you can access it until adult.❞

Eventhough he didn't express it through the face, back then, he was in doubt about his existence for the first time. The questions lingered inside his head while he was looking at city lights beneath him.Was he their burden all of this time? Was his effort not worthy enough for his mother? For what reason he was living in this world?The breeze of that abandoned building's rooftop seemed to try soothening him, who back then quietly stood on the unsafe edges. He was alone, and nobody expected him to be here anymore. He was already up for his mind until a man pulled him immediately from the edge, saving him from the danger and teenager Ryūsei immediately broke his expression. He realized that it was his worst decision and thought.The high school was actually a turning point of Ryūsei. As if that incident never happened on him, he continued his daily by receiving scholarship so he was exempted from tuition fee through his academical skills. It was the same when he was accepted at a university through scholarship, entered a major which he felt safe since he thought he was quitely fond about books and information.Through the information, he is trying to answer his past questions. Through the information, he is trying to dwell on sorting his knowledge and finding some new of them, so he can find the reason to stay—to explore this world—even if he stands alone.

| Biological Father. | Okazaki Ryuuto |
| Biological Mother. | Sasaki Kirei |
While he is not in good terms with his parents, he surprisingly good at maintaining his friendship eventhough he has only few people. He has a little group of friends which he is comfortable around since freshman year.Author's Notes: We open for any relation whether it's crucial or not for Sasaki Ryūsei. Please contact us through DM if you need some discussions with us. Also, if you want some recommendations, allow us to put them below.
| 'Group of Friends.' |
| It's simply a platonic group of four people which is formed since freshman year, we can discuss more about how the group formed. |
| Recommended FC: Caelus, Stelle, and March 7th (Honkai: Star Rail) |
