My Boyfriend in Orange Vol. 4 (Kodansha, 2018)

After Moe's first date(?) with firefighter Kyosuke culminated in an accidental kiss, poor Moe's so self-conscious that it's gotten hard for her to visit Kyosuke like she did before… Meanwhile, Mana, an up-and-coming celebrity from the fire safety idol group Rescute, arrives at Akaboshi Station to work on her role for an upcoming drama! She's been rescued by Kyosuke before, too-and it looks like she might have feelings of her own for Moe's firefighter flame…? Moe's heart belongs to the cool and kind Kyosuke as much as ever, but with a real live idol for a rival, could she be in hot water?!