Shin Yeon-suk Personality Type, MBTI

Shin Yeon-suk personality type is ISFJ, and the main heroine's personality is ISTJ. I'm not saying that they're the same, just that they're similar. The difference is that the heroine is more self-deprecating in her efforts to get her sister to be self-confident, which ISFJs would naturally comfort and support. The heroine's efforts also make her sister more confident, which seems to be more common in ISTJs than any other personality type. I'm not saying that Han So-hee is ISTJ, but if you look at the type of characters they play, they're similar. Han So-hee's personality type is ISFJ, and the main heroine's personality is ISTJ. I'm not saying that they're the same, just that they're similar. The difference is that the heroine is more self-deprecating in her efforts to get her sister to be self-confident, which ISFJs would naturally comfort and support. The heroine's efforts also make her sister more confident, which seems to be more common in ISTJs than any other personality type.