Umi to Futari no Enbun Noudo
海と二人の塩分濃度
Ryuuta has spent multiple summers working at a pub owned by Naoki, gradually developing strong feelings for him while Naoki is in a long-term relationship. When Ryuuta decides it will be his last summer working there, he discovers that Naoki's girlfriend is no longer around. This prompts him to finally confess his emotions to Naoki.