Requirements: Clear any ending
Requirements: Clear the <True Ending> and <Good Ending>
Requirements: Clear <Day 1>
Requirements: Clear <Day 2, Morning 1>, <Day 2, Morning 2>, <Day 2, Morning 3>
Requirements: Clear <Day 2, Afternoon1>
Requirements: Clear <Day 3, Morning>, <Day 4, Morning 1>
Requirements: Clear <Day 3, Morning 1>
Requirements: Clear <Day 3, Morning 2>
Requirements: Clear <Day 3, Morning 3>
Requirements: Clear <Day 3, Night>
Requirements: Clear <Day 4, Morning 2>
Requirements: Clear <Day 4, Morning 3>
Requirements: Clear <Day 2, Morning>, <Day 2, Morning 1>, <Day 3, Morning 3>, <Day 4, Afternoon>
Requirements: Clear <Day 5, Morning>
Requirements: Clear <Day 5, Afternoon 1>
Requirements: Clear <Day 5, Afternoon 2>
Requirements: Clear <True Ending>, <Day 4, Morning 2>, <Day 5, Afternoon 3>, <B-Part - Day 6, Afternoon 3>
Requirements: Make the perfect choices.
Requirements: Clear <B-Part - Day 6, Morning>
Requirements: Clear <B-Part - Day 6, Morning 1>
Requirements: Clear <B-Part - Day 6, Morning 3>
Requirements: Clear <B-Part - Day 6, Afternoon 2>, <Bad Ending 4>
Requirements: Clear <True Ending>, <B-Part - Day 6, Afternoon 3>, <Bad Ending 5>
Requirements: Clear all <Bad Endings>
Requirements: Choose (2. Starve) 10 times or more in <Day 2, Afternoon >
Requirements: Clear <Extra Story 11: Ion, We Have to Talk>
Requirements: Clear <Extra Story 10: There's No Way That My Mother-in-Law Can Be This Cute>
Requirements: Clear <Extra Story 12: Spirit Detective, Rin. "Her, Mine, and Her Deduction">
Requirements: Let time expire without making any choices. Clear <An indecisive man Ending>
Requirements: Clear <Extra Story 13: Love, Mermaids & Other Delusions>
Requirements: Clear <Extra Story 14: Lazy Mermaid! Petako-chan>
Requirements: Clear <Extra Story 15: Overpowered Teaser Koma-san>
Requirements: Clear <Extra Story 16: Advance! Mermaid Girls>
Requirements: Clear all scenarios
Requirements: Unlock all 18 illustrations
Requirements: Unlock swimsuit illustration
Requirements: Clear <Extra Final: Mermaid Princess SCHOOL>
Requirements: Start the game during the month of January
Requirements: Start the game during the months of February and March
Requirements: Start the game during the months of April, May, or June
Requirements: Start the game during the months of July and August
Requirements: Start the game during the months of September, October, or November
Requirements: Clear <Extra Encore: Mermaid Princess School 0>
Requirements: Complete all illustrations, movies