1-3. A lively tale unfolds in Hello Arrow 4. Followed by Aya-nee's whims in Aya Ane no Omou mama (As Aya-nee Pleases) and the anticipation before the pool opening in Pool-Hiraki no Sono Mae ni (Before the Pool Opens). Delve into the experiences of summer break in Natsuyasumi no Sugoshikata (How I Spent My Summer Holidays) and the preparations leading to the test in Test Mae no Sugoshikata (How I Spent the Time Before the Test). Concluding with the mysterious allure of Night Arrow.