Tiny happiness on the sand/砂上的微小幸福

This is a heartwarming yet poignant Japanese science fiction light novel. During a mission, the young man Muneshi Ema accidentally reunites with a former acquaintance, Saki Makura, at a research facility. However, their memories are fleeting, and they are soon drawn into a sabotage operation... In this critical moment, a mysterious cell, "Algernon," secretly researched, saves Saki from death and becomes a parasite within her body. In exchange for returning his body to Saki upon recovery, "Algernon" begins living with Muneshi. The beautiful scenery, novel experiences, and kindness of people gradually spark her curiosity and yearning for the human world. As they grow closer, they develop a mutual reliance and a blossoming love for each other.

本书是一本温暖又凄美的日系科幻轻小说。某次任务中, 青年江间宗史在研究机构偶然与曾经相识的女孩真仓沙希未重逢, 然而二人回忆往事只在片刻间, 很快便被卷入一场破坏行动……危急关头, 秘密研究的未知细胞“阿尔吉侬”救下了濒死的沙希未, 从而寄生在她体内。“阿尔吉侬”以伤势痊愈后将身体归还给沙希未为条件, 开始与宗史生活在同一屋檐下。美丽的景致、新奇的事物和善良的人类逐渐让她对人间产生好奇与向往, 她和宗史也在相处过程中互相依赖, 萌生了情愫。