Choose "Give up and go home" at choice 14. This often leads to Aeka attempting suicide, which results in her being hospitalized in critical condition. Mizuki Kirimiya (Case 2: Interpersonal)
Choose "Find a way in" at the final critical choice. Kouhei and Aeka eventually leave school and start a new life together. Yume Miru Kusuri: A Drug That Makes You Dream F...
Consistently choose to be kind to her. Key choices include telling her something early on, going shopping with her, and helping her up when she is down. Choose "Give up and go home" at choice 14
Mizuki is the student council president, and her route explores her feelings of isolation and pressure. Yume Miru Kusuri - Walkthrough - PC - By ronin_salsolo going shopping with her