The man from Wugeng's family is indeed reliable

Here is the book introduction:
In the dim sunlight, the sound of waves still lingers in the ears. The white fingers are tightly clasped together, and an identical ring is lingering on the ring fingers of both parties, with each other's names engraved inside the ring. As the sunset sinks, the two shadows gradually overlap, leaving only the sound of waves and the gentle confession lingering in each other's hearts.
"Hiroshi-kun—I like you."
"Yeah, I like you, too."
A simple confession is better than a long love letter.
You know my heart.
I know your intention,
PS: This book is a multi-line 'pure love' novel, also known as "The girls I like will lose their memory", "I am a single dog but I feed them good dog food", "I am the protagonist, girls all want to date me", "My sister is the cutest in the world", "The impossible love story between me and my childhood sweethearts", "A love story that travels five light years per second", "We still don't know your name", "My Neighbor Totoro is the cutest in the world and all girls like it♪(^∇^*)"
PS: What the hell is the last one (funny face)