Sister Hui Ye Wants Me to Be Reliable

"It's really not easy. Just by looking at my sister's appearance in those two days, I can see how troubled Brother Yuxing is." Shi Zhu rested her chin on one hand, and smiled a little silly, "But it's great, my sister's affairs are in general. Said it was going well. I also received my first birthday gift from him after dating.”

"Dianzhu has worked so hard, I don't know if she has lost her hair?" Hayasaka asked.

"That's not likely, but I always feel like I have gray hair." After Shi Zhu finished speaking, she lowered her head, "Please help me to see if there is any."

Although Hayasaka knew it was a joke, she checked it unambiguously, "Don't worry, I don't have gray hair."

Ignoring the flash bombs that continued to explode at close range, Kaguya's mood became joyful after receiving the gift, and he even became more careful when opening the gift box, trying to keep the entire package.

The warm gossip between the two fell in her ears as a sister, so it was not so exciting.

"It's really not a waste of time..." Kaguya glanced at the two of them, and sighed with a smile.

Shi Zhu rested her chin on one hand, with an innocent face, "Who made this mansion so strict, it's dangerous to keep love in the room at night."

"..." Hui Ye was speechless, or she didn't know what to say about Shi Zhu.

"It's not far away anyway, just call me if you need anything." Hayasaka whispered in Shi Zhu's ear.

"Okay, okay, it's rare to come back. Take some time to meet Nao's mother these days, and report our relationship by the way." Shi Zhu covered her mouth with her hand and said.

"I heard everything—" Kaguya played with the gift box, not forgetting to tease the two of them.

"Oh, sister, why are you only paying attention to our side—" Shi Zhu smiled wryly, and then showed a brighter expression, "Sister, why don't you quickly open the gift from Brother Yuxing?"

"What will Chairman Baiyin give?" Hayasaka was also a little curious.

Kaguya nodded, "I'll open it now and have a look."

The gift from Baiyin Yuhang was small and delicate, it was a necklace with a crescent-shaped pendant in the middle.

"It's quite exquisite." Shi Zhu leaned on the edge of the table with one hand in her hand, "Brother Yu Xing is really, obviously he has been looking for something to give, and he dragged me around the street a few times .”

But Kaguya didn't answer him immediately, but pulled the two ends of the necklace and examined it for a long time.

"My sister is very clear about the situation of Brother Yuxing's family. It is impossible for him to give too expensive things now." Shi Zhu thought that her sister was dissatisfied, so she reminded her.

Kaguya looked around, "Is there a ruler here?"

"Probably not?" Shi Zhu was not quite sure.

"I know where there is—" She stroked the hem of the skirt with her hand, stood up, and walked outside.

After 1 minute, I returned to the room with the ruler.

After that, the two watched Kaguya's behavior of measuring the length of the pendant's rope in puzzlement.

After confirming the length with the ruler, Kaguya instantly showed a childlike joyful expression.

"Sure enough... 24.8 centimeters!" After Kaguya finished speaking, she held the pendant in her arms and let out a cry of joy.

"What about the subtle numbers, I feel like I've seen them before." Shi Zhu rested her chin with one hand.

Kaguya didn't care about showing off at all, "It's the swing cycle——"

"Swing cycle..." Shizhu recalled the definition and formula related to this term, "Assuming that the crescent moon decoration of the pendant is a free-sagging object, apply the formula T=2π√(l/g), and the pendant of 24.8 cm, Oscillate back and forth once... er, the period is a little over 2?"

After hearing Shizhu's mental calculation, Kaguya gently stroked the pendant, "To be precise, it is 2.0064, and the round-trip time is about one second."

"And then? Why did Chairman Baiyin give this to Miss Huiye? It was a pair when I bought it, isn't it an ordinary couple's necklace?"

Hayasaka still didn't quite understand it, and so did Shizhu.

"Oh... I gave the president a notepad as a Christmas present, which contained my wish to spend time with the president tomorrow, and his answer was just this." Kaguya held up the necklace, "President I wear it with me, and the meaning is 'let us live in the same time'. It's so romantic."

"I think the discussion of romance should be put aside for now..." Hayasaka complained slightly.

However, Kaguya and Shirogane's thoughts are on the same channel, so common sense doesn't matter whether it's applicable or not.

Shi Zhu opened her eyes slightly, and looked at the gift box on the table, "I see, it's an imaginative choice. In comparison, what Brother Yuxing gave me is a pen."

"Because the president doesn't know what you want." Kaguya could understand, "By the way, where is Hayasaka, what did you give Shizhu?"

"Nothing." Hayasaka said calmly.

"Huh?" Hui Ye didn't quite understand.

Shi Zhu moved closer to Hayasaka's side, and put her arms around her shoulders, "For me, having love by my side is already the most precious gift."

"Humph——, I'm completely fascinated." Hui Ye took the opportunity to joke.

"Well, I don't deny it—" Shi Zhu shook her head triumphantly.

Hayasaka brushed his temples calmly, "This is also necessary to maintain the relationship. Miss Kaguya needs to accumulate more knowledge in this area."

Kaguya held the necklace with both hands, his face full of surprise, "Knowledge?"

"It's not suitable to talk face to face now. I'll teach you later when I have time." Hayasaka raised Meifeng lightly, and got up from the cushion for the second time, "Come on, I'll help Miss Kaguya put on the necklace."

"Ah."

After putting on the necklace, Kaguya fondled the crescent moon ornament very preciously.

At this time, the door of the room was knocked, and Hayasaka, who happened to be the closest to the door, turned around and opened it a little.

The people outside said respectfully: "Miss Hui Ye and Master Shi Zhu, please go to the main hall."

"It's not necessary for us to attend the reception of guests at home?" Shi Zhu put down her hands and asked indifferently.