|Name in Japanese||葦原 怜那|
|Romaji Translation||Ashihara Rena|
|Voice Actor (Japanese)||Hasegawa Akiko|
|Class||5th grade, 2nd group|
|Anime Debut||I Wish with You|
Rena Ashihara (葦原 怜那 Ashihara Rena ) is a fifth-grade member of the Suzuridani Academy Basketball Team. Though, it was proven that she was kicked off of the team, but then had to play in the tournament.
She has red hair with 2 ponytails. She wears a cap with the words "DARK STAR NIGHTS" on it. She loves to eat lollipops and lots of self confidence in her one-on-one basketball skills.
Rena is thought out to be a bratty, petite, show-off. She may have her soft moments. But, other times, she just is bratty. At one time, she gloated over beating the Takenaka twins who just came out of a grueling defeat against Tomoka's team.
She first made herself known to the Takenaka twins with a braggart swagger and beat them in a 2-on-1 basketball game. The deal between them is supposed to be amongst the three of them, but dealing with her has become an affair for the whole team, particularly Masami, when she accidentally messes up with her operations during the food festival.
She is used to, and is excellent in, 1-on-1 basketball, but she was forced to play 5-on-5 during an important tournament, something she is not accustomed to, and against Keishin—the very team she crossed.
Rena is an exceptionally athletic player for her age whose strength lies on her strong isolation plays. In Suzuridani's first-round match in the regional tournament against Keishin, she used a move called Magical Vanishing Ball, where she dribbles the ball right under the defender's legs, then catches it quickly as she blows the defender away. In two separate instances, she made alley-oop shots from Aya and Miyu's passes, a true testament to her athleticism.
However, she tends to play all by herself with no regard to her teammates, such as when she tried to play one-on-five against the entire Keishin fifth-grade team, sending her into early foul trouble with three personal fouls by halftime. Moreover, she tends to be lazy on defense, as when she just stared at Tomoka and Masami as she made their respective shots.
- Fans see a comparison between Rena and Daiki Aomine, as both are very athletic players with similarly unconventional playing styles.