Things change when Terukichi Miyata, after the death of his son, decides to bring back the daughter he adopted away to pearl divers from another island. Raised as a pearl diver, the beautiful Hatsue wins many admirers, including Shinji. The prospect of marrying Hatsue becomes even more attractive when the wealthy Miyata intends to adopt the man who marries Hatsue as his own son. Shinji and Hatsue soon fall in love.
When Chiyoko, the daughter of the Lighthouse-Keeper and his wife, returns from studying at a university in Tokyo, she is disappointed to discover Shinji, whom she has affections for, has fallen in love with someone else. She takes advantage of the jealous Yasuo Kawamoto, an arrogant and selfish admirer of Hatsue, and uses him so Yasuo will spread vicious rumours of Shinji stealing away Hatsue's virginity. Yasuo is jealous of Shinji because he thinks Shinji will take Hatsue's virginity. He tries to rape Hatsue at night when it's Hatsue's turn to fill out the bucket of water. The attempt is unsuccessful, however; he is stung by hornets as he tries to strip her clothes off. Humiliated, he makes a deal with Hatsue: He will refill the bucket and carry it down the stone steps for her, and Hatsue must not tell anyone he was trying to rape her.
When Terukichi finds out the rumor, he forbids Hatsue to see Shinji, but through Jukichi and Ryuji, the two manage to continue communicating with one another by means of secret letters. Terukichi steadfastly refuses to see Shinji for an explanation and when Shinji's mother, who knows her son will never deliberately lie, goes to