After that wonderful night, Kaito's relationship with Nanaka was sealed with a golden seal. In the following weeks, they were inseparable, sharing all sorts of activities, both those Kaito loved and those Nanaka enjoyed, including a lot of diving. Nanaka tried out the new equipment that Kaito gave her for her birthday and she loved it.
During these diving sessions, all the members of Peek-a-Boo also regularly joined in, resulting in very memorable moments for all of them. These moments allowed them to get to know Kaito even more, and vice versa, so everyone enjoyed them.
Chisa, in particular, stared fixedly at Kaito every time he turned around. Kaito noticed and asked Nanaka about it. "Nanaka, do you know why Chisa has been staring at me these days?" Upon hearing this, Nanaka smiled and said with a grin, "Hahaha, it's because of the new diving equipment you gave me for my birthday. Chisa loves everything related to diving." Upon hearing this, Kaito nodded and asked with a smile, "I see, would it be okay if I give her a similar set for her birthday?" Nanaka, upon hearing this, grinned widely and said to Kaito, "That would be wonderful. Chisa would love it." So, they decided to keep it a secret from Chisa that they would be giving her a new diving equipment for her birthday.
Months passed, and many things happened. The main thing was that Kaito had to return home due to work, but this time he brought Nanaka with him, who was very nervous about meeting Kaito's parents, especially now that they are her in-laws.
Upon arriving in Tokyo, they went straight to Kaito's parents' house. Upon arriving at their mansion, Nanaka was very surprised by Kaito's large house. "I imagined it would be impressive, but this is too much," Nanaka said. Upon reaching the door, two groups of butlers and maids awaited them. Upon seeing Kaito getting out of the car, they all said at the same time: "Welcome home, Young Master Kaito." Nanaka, who was also getting out, was surprised by the servants' welcome and looked astonished at Kaito, who, with a calm look, smiled at her and said, "You'll get used to it." Nanaka nodded foolishly.
Then they entered the mansion, and Nanaka followed Kaito to a particular room. Upon opening the door, they found Kaito's mother sitting calmly waiting for them. Kaito's mother smiled upon seeing them and said to Kaito, "It was about time you brought her here. You took too long, Kaito." Then, she looked at Nanaka, who was nervous, and said with a smile, "So, you're Nanaka, huh? The woman who stole my son's heart. I'm very happy to finally meet you. Come, let's chat." Nanaka nervously looked at Kaito, who smiled and nodded, and Nanaka went to Kaito's mother, and they started talking, with Kaito's mother asking Nanaka various things, and Nanaka responding with a smile.
Later, Kaito's father also arrived, to whom Kaito introduced Nanaka with a smile, welcoming her to his family. They started the family dinner, during which they mainly talked about how Kaito and Nanaka met and what their relationship was like. Everyone had a great time and improved their relationship with each other.
Thus, March arrived, and it was Chisa's birthday. Kaito bought the latest diving gear for Chisa as a birthday present, and considering how much of a diving enthusiast Chisa was, she would be delighted with these gifts. As Kaito thought, on Chisa's birthday, when she received Kaito's gifts, she pounced on them and took them in her hands, looking at them as if they were the most precious jewels in the world. After coming out of her reverie, she thanked Kaito for the gifts, and everyone proceeded to celebrate her birthday.