Kaede to Suzu

Two sisters falling for the same guy they've both known their whole lives, that's the central tension driving this 3-episode OVA. Kaede and Suzu grew up alongside Hayato, and now all three of them share student council duties together. Kaede runs the council as president, carrying that classic no-nonsense exterior you'd expect from someone in that role. Suzu is quieter, but don't mistake that for passive, but she's calculating in ways her sister isn't. Both of them have feelings for Hayato, and neither is backing down. The setup leans into the sibling rivalry hard, placing it against the mundane backdrop of student council work, which creates an interesting contrast between the formal responsibilities they're supposed to be handling and the personal tensions simmering underneath.