However, legal experts suggest that it may be unreasonable for advertisers to demand penalty fees from Kim Soo-hyun.

In an interview with this publication, Attorney Jon Jae of Nojong-eon Law Firm stated, "The key issue is whether a standard advertising contract considers 'actions that harm social reputation' as grounds for penalty fees." He explained, "During the period when Kim Soo-hyun and the late Kim Sae-ron were allegedly dating, under criminal law, statutory rape was only established if there was sexual intercourse with a minor under the age of 13. However, after the 2020 Telegram 'Nth Room case,' the age standard was revised to under 16."

He continued, "It is unclear whether Kim Soo-hyun and the late Kim Sae-ron had a sexual relationship. Even if they did, it would not have been a punishable offense under the law at that time." He added, "Even if their relationship was romantic rather than sexual, and advertisers suffered significant damage, the key legal issue would be whether this constituted a breach of contract, which is expected to be strictly examined in court."

In conclusion, he noted, "Although the potential for substantial public criticism is high, the actions in question were legally permissible at the time," emphasizing that "the crucial point is whether this can objectively be considered an act that harms social reputation."