Haru lived with Ren and his two other siblings, Aki and Shima. The four of them were siblings in a way, since Haru was only a half-brother to Ren, Aki, and Shima. Ren had been adopted, and Aki and Shima were the only biological twins, but let's just say they were a family of adopted siblings. Since childhood, Haru's dream had been to live with all his siblings in the same house, and after many failed attempts, he had finally achieved it. He bought a large, spacious house for everyone, and he felt truly happy.

He had known Ren since he was little, not since he was a baby, but at least since he was about seven years old. His mother had practically found him in the middle of the forest with the wolves. Ren was being raised as one of them, and for some reason... Haru felt an immense curiosity toward him, not just brotherly or compassionate curiosity, but one he didn't understand. At that time, they lived in Canada, and since some people there have the custom of greeting their relatives with kisses on the lips and other gestures, Haru didn't hold back with Ren either.

Haru had already given him his first kiss when he was little. Ren, because Haru told him it was normal and also because he knew these customs existed in Canada as well, didn't question it. And as they spent more time together, it began to become almost... normal, natural. Although Haru didn't do that with Aki and Shima, and only the two of them had that display of affection among all the families in Tokyo, where they lived, Ren still didn't question it. Why? Because Haru was important to Ren. Since he was little, Haru had protected him and had also taught him many things, like how to use chopsticks and write, among others. In short, Haru was a very respectable person to Ren, someone he should admire, and he longed to be like him someday. And Haru, of course, was no exception. Although Ren didn't know it, he loved Ren with all his heart.

Today, Haru had taken Ren out to dinner to celebrate the end of exam season and Ren's fortunate passing grades. Ren was calmly awaiting the end of the meal. They were at a barbecue, and Haru placed pieces of meat on the grill and then onto Ren's plate, looking genuinely happy to be spending time with him. Moments later, he placed another cooked piece of meat on Ren's plate, smiled slowly, and gently tapped Ren's nose. "Ren, Ren, eat. You need to eat to grow taller."