Sakana no Miru Yume

Summary

From MangaHelpers: Since their mother's death, sisters Tomoe and Mikage have been mostly raising each other. The older sister, Tomoe, is determined to get good grades and work her way into a good college. However, she's disturbed by the trouble Mikage sometimes gives her. For instance, at the beginning of the manga, Mikage sneakily locks a collar around her older sister's neck, forcing her to go through the day wearing it. Mikage wants Tomoe to think only of her, and her affection may be beyond