The following contains spoilers for Episode 2 of Aharen-San is Indecipherable, "Are We Being Followed?", now streaming on Crunchyroll.
Aharen-San is Indecipherable is a brand-new rom-com anime series in the Spring 2022 anime season, starring the petite Aharen Rain and her platonic male friend and classmate Raido. They befriended one another in Episode 1 as neighbors in class, but now in Episode 2, another character joins Aharen's tiny social circle.
Oshiro is a timid girl who has always watched over Aharen like a protective mother -- a dutiful self-appointed guardian who fears big guys like Raido. In Episode 2, Oshigo makes her presence known to Raido, and when they confront one another, a misunderstanding ensues. Raido's new friendship with Aharen certainly comes with its fair share of baggage.
In Episode 2 of Aharen-San, Raido and Aharen continue to slowly and sweetly develop their budding friendship, and already, Aharen makes it clear that Raido is special to her. Aharen is a shy kuudere-type character who feels strong affection for others but has trouble expressing it, but all the same, her actions often speak louder than words. For now, Raido is too dense to realize how much Aharen cares for him, but he might pick up on that eventually. Meanwhile, another girl, Oshiro, picks up on it immediately. She can tell that Aharen and Raido are spending an awful lot of time together lately, so she must do something.
In Episode 2, Oshiro constantly spies on Raido, and during lunch, Oshiro finally confronts him while taking Aharen's side. Oshiro explains that she has always watched over Aharen to protect her from scary people, and she believes that the rather brawny Raido is dangerous. Oshiro clearly means well, but both Raido and Aharen assure her that there's nothing to be worried about. Raido is a gentle giant who treats Aharen well, and in return, Aharen is deeply fond of him.
However, Oshiro isn't entirely convinced until the end of the episode, when she watches Raido and Aharen walking home together from afar. Oshiro still has those protective feelings, but if she's watching them from far enough to require binoculars, she's also too far away to intervene if things go wrong. Evidently, Oshiro no longer sees Raido as a threat to Aharen's safety, and that's progress -- granted, not much, but progress all the same.
Oshiro's character arc is just beginning as of Episode 2 of Aharen-san is Indecipherble, but there are already some clues and hints as to what may be next for her and the rest of the cast. Characters like Oshiro don't easily give up on their defining character trait or attribute, even if these characters tone down their extreme behavior after their debut. Already, Oshiro trusts Raido a little more with Aharen, but it's unlikely that she will stop serving as Aharen's self-appointed guardian and mother hen anytime soon. She will likely keep this up, mainly for comic effect, but she might get more serious about it if other boys start hanging out with Aharen as well. Then Aharen might find herself explaining things all over again.
It's also possible that Oshiro may warm up to Raido and become his friend, although Aharen will probably always be number one in Oshiro's heart. Oshiro may decide that she's reluctant to have any boys around Aharen but that Raido can be the sole exception, and she might even trust him enough to have him share the duty of guarding Aharen. If so, that could strengthen Oshiro's and Raido's friendship, bonding over their mutual interest in Aharen.
It also helps that Raido is a big and tough guy who could be intimidating if he wanted to, so Oshiro might value him as Aharen's best bodyguard from now on. Oshiro isn't big enough, strong enough or scary-looking enough to actually do much in Aharen's defense, so she can delegate that job to Raido to give herself some peace of mind. She certainly could use a break by now.