Born with a hearing impairment, Yuki lives in a soundless world. It was her usual morning—riding the train surrounded by sounds she couldn't hear, browsing social media on her phone, and thinking about cute clothes. A foreigner calls out to her, showing her a guidebook. Yuki panics, as the foreigner doesn't understand sign language. Itsuomi, her senior at her university, then steps in to help her. 雪与生俱来便有听觉障碍，生活在「无声世界」里。这天她一如既往地在声音此起彼落的列车中，滑手...

Yuki has exchanged contact information with Itsuomi. Itsuomi sends her a message saying, "Let me into your world, Yuki," making her heart flutter. However, Yuki finds Itsuomi talking to several women at the university. When she reads his lips, she sees that he's speaking a different language, causing her to worry that he might be only interacting with her for cultural exchange. 雪成功与逸臣交换联络方式，望着他传来「让我进入雪的世界」的讯息，雪内心小鹿乱撞。此时，她在大学里发现逸臣在跟几名女性对话。从口型能...

Yuki has realized her feelings for Itsuomi. She goes to Rockin' Robin again with Rin. Yuki's hearing aid shrieks and Itsuomi asks her about her hearing. Kyoya rebukes Itsuomi for asking such a sensitive question so bluntly, but Yuki is happy that Itsuomi is interested in her. Shortly after, Itsuomi's classmates back in high school, Emma and Shin, come to the café. Seeing Itsuomi and Emma looking so friendly, Yuki starts having a fuzzy feeling...

Yuki, Itsuomi, Rin, and Kyoya decide to go shopping together on their day off. Yuki can't stop her excitement, carefully applying skincare and fretting over what to wear. The day arrives, and Yuki rides the train to see the other three. There, she bumps into Oushi. Itsuomi comes to pick up Yuki at the station, but Oushi is angry for some reason. 雪、逸臣、玲和京弥四人，一起在休假日外出采购。 雪一下细心做皮肤保养，一下烦恼穿哪件衣服好，整个人为此雀跃不已。 当天，雪为了与其他三人会合搭上电车，却刚好与樱志搭到同一班。 樱志看到来车站接雪的逸臣的脸

Itsuomi nervously enters Itsuomi's apartment for dinner. Itsuomi shows Yuki his albums and tells her about his family, childhood, and memories overseas. As Yuki gets to know Itsuomi more, he also asks about Yuki. However, Emma comes by to visit Itsuomi. 决定在逸臣家吃饭后，雪紧张地进入他家。逸臣把相簿给雪看，讲述关于自己的家人、童年还有在国外的回忆，这使雪萌生出想更了解逸臣的念头。逸臣也表示想要了解雪的事情，然而此时爱玛造访了逸臣家……

Yuki is shaken when Itsuomi kisses the back of her hand. Now overflowing with feelings for Itsuomi, she decides to give him her sign of affection. However, Itsuomi gets a phone call, causing him to miss Yuki's confession. Yuki is shocked when Itsuomi tells her he's going abroad at the beginning of next week and that the next time they'll meet will be after spring break. Yuki promises to send him sign language videos even when they're apart. 雪因为逸臣

Itsuomi has gone abroad. Yuki looks for a part-time job to save money so he can go abroad with him someday. However, many obstacles await Yuki. In one interview, the interviewer is wearing a mask, preventing her from lip reading, while the other requires a phone conversation. In the meantime, Yuki hears from Oushi that his sister Mio wants to see her and meets up with her for the first time in a while. 逸臣去了国外。 雪也想着有朝一日要跟他一起出国，于是为了存钱开始寻找打工。 然而...

Itsuomi has introduced Yuki to Shin as his girlfriend. Although Shin congratulates the couple, his concerns about Emma remain. Aware of Emma's feelings for Itsuomi, Shin tells Itsuomi that he'll handle it, all while harboring feelings for Emma since high school. 逸臣向心介绍雪是「我的女友」。 祝福两人之余，心还是在意爱玛。 知道爱玛对逸臣的一片心意，考虑到她的感受，心表示「爱玛那边就由我去讲」。 然而，心自己也是从高中时期就一直暗恋爱玛至今。

Itsuomi suggests holding a sign language camp with Yuki, Rin, and Kyoya. Aside from Yuki, Rin is also eager to join, determined to get closer to Kyoya. Meanwhile, Rin has been receiving multiple invitations from an employee of the real estate company she worked part-time at during spring break. On the day of the camp, Kyoya and Rin finally get a moment alone, but she then receives a call. 逸臣提议找上玲跟京弥一起进行「手语集训」。雪自不待言，玲也兴致高昂，鼓足干劲要在集训期间缩短与京弥之间的距离...

Oushi hears from Izumi that Yuki was together with someone she thought was her boyfriend. Taking Izumi's advice to be more honest with his feelings, Oushi musters up the determination to video call Yuki. Unfortunately, Yuki doesn't notice the call because she is staying over at Itsuomi's house. Itsuomi tries to spend time with Yuki the way he spends his weekends—watching movies at home. However, Yuki is too nervous to relax. 泉告诉樱志，雪跟貌似她男友的人物两...

Yuki stops by the supermarket for errands from her mother, but she has trouble paying at the cashier because the clerks are wearing masks. Oushi comes to her rescue, and Yuki feels awkward seeing Oushi speak to her in such a tender way. He also avoids any talk about Itsuomi, face suddenly flushing. Yuki ponders how Oushi feels like a completely different person. 妈妈拜托雪回家路上顺道去超市买东西。正当雪读不出戴着口罩的店员口型而深感困扰之际，樱志忽然出手相助。两人在谈论到逸臣的话题时，樱志突然露出认真的表情制止雪比手语。...

Yuki and Itsuomi have decided to go on a date. While Yuki was pondering all sorts of things, they decided to go to the park. Yuki loves taking pictures of flowers, so she goes around the park taking photos of them. Looking at the pictures, Itsuomi feels the world Yuki sees. As their peaceful time together passes by, Yuki decides to ask the question to Itsuomi again—the one he said he'd answer once they were closer. 雪跟逸臣决定去约会，雪在苦恼之后定下的目的地是某个公园。喜欢拍