1. Park Ji Hoon as Gong Joo Young

Gong Joo Young is a lovable high school student who falls in love with Wang Ja Rim at first sight. Despite her coldness, he perseveres and wins her heart.

Key features: - Outgoing and jolly - Sincere displays of affection - Perseverance in winning over Ja Rim

Pros and cons: - Pros: sincerity, perseverance - Cons: gaudy displays of affection

2. Lee Ruby as Wang Ja Rim

Wang Ja Rim is pretty but standoffish, annoyed by Joo Young's advances. Over time, she softens towards him, finally accepting him as her boyfriend.

Key features: - Reticent and standoffish - Popular among peers - Softening temperament towards Joo Young

Pros and cons: - Pros: gradual opening up to Joo Young - Cons: initial annoyance towards his advances

3. Kim Young-hoon as Lee Kyung Woo

Lee Kyung Woo is Joo Young's best friend who jokes around despite his cold appearance. He later harbors feelings for Ja Rim but hides them for Joo Young's sake.

Key features: - Popular student among peers - Friendly despite his appearance - Harbors feelings for Ja Rim but hides them for Joo Young's sake

Pros and cons: - Pros: loyalty to friends - Cons: unspoken feelings for Ja Rim have the potential to complicate matters

Conclusion

The South Korean drama "Love Revolution" presents a heart-fluttering romance between Gong Joo Young, Wang Ja Rim, and their friends. With its popularity and engaging plotline, it has captivated viewers worldwide.