Half a year after her marriage, Yang Chiyu's life was as peaceful as a lake with no ripples. Her husband is away from home all year round, and she lives alone in her home in a bustling city. She leads a step-by-step life between home, work and the tennis court. She is quiet and restrained, even a little distant, and carefully hides the passion deep in her heart.
Until her husband's sister, Xu Le'en, who was five years younger than her, graduated from college. The two of them lived under the same roof, causing two completely different personalities to constantly collide and blend. From the initial polite alienation, to unconscious attraction and mutual testing. Ambiguous feelings quietly breed and heat up in every glance, every casual touch, every pun-filled joke, like an undercurrent surging, quietly eroding the established boundaries. One pretends not to understand and enjoys it; the other gets closer step by step, eager to touch the true heart. How this innocent relationship, which began under the title of sister-in-law, will develop will test the courage and heart of the two...
Purpose: In the gaps between established social relationships, explore the authenticity and purity of self-emotions, and examine the courage, confusion and growth brought about by love.