Group CORTIS proved their live skills on the stage of a major Japanese rock festival, earning an enthusiastic response from fans around the world.

The performance video was released under the title 'CORTIS Full Live Performance @ ROCK IN JAPAN FESTIVAL 2026'. Despite torrential rain, fans from Korea, Japan, and English-speaking countries poured out their support for the stage.

■ "CORTIS in the Rain Was Stunning"... Reactions from Japanese Audience Members

The reactions of Japanese fans who attended the concert in person are particularly noteworthy. One Japanese fan expressed satisfaction, saying, "It was a Rock in Japan that didn't lose to the rain. The energy was the best, and CORTIS in the rain was truly amazing." Another Japanese fan commented, "I saw CORTIS for the first time that day. It was pouring and the ground was covered in mud, but the performance was so good that the environment didn't bother me at all. The fans' energy was incredible too."

Among Japanese fans, there were also specific evaluations of the song arrangements. One fan picked the metal version of 'Fashion' as their favorite performance and expressed hope of hearing that arrangement on tour as well.

Korean fans also praised the live performance and song selection. One domestic fan positively assessed the musical changes, saying, "'Blue Lips' in the rain was so good. The 'Watch Your Words' band arrangement was great too." Another fan expressed regret about not being there, saying, "The live performance and song selection were amazing. I should have been there." Some also commented that the stage outfits, styling, and the atmosphere of the rainy venue blended together to create a dreamlike feel.

■ "They Truly Make the Stage Shine"... Overseas Fans Continue Their Praise

English-speaking fans' reactions have also been enthusiastic. One fan wrote, "I hope someday we can also be there screaming our lungs out in support," a comment that received about 1,800 likes. The assessment "CORTIS truly makes the stage shine. Their presence on stage is astonishing" received 620 likes.

Some fans paid attention to the members' musical efforts. One fan mentioned the effort CORTIS put into lyric writing, composing, producing, choreography creation, and music video directing while preparing for their debut, expressing expectations for their growth. That comment received 913 likes. Comments praising Martin's stage skills and reactions cheering on James and Geonho also appeared, showing fans' affection for each member.

There was also praise for the filming and editing of the performance video. One fan noted that the camera captured every member's singing moments without missing anything, evaluating the overall video composition as excellent. Japanese fans' continued support also followed. One fan said, "Thank you for coming to Japan. I will keep supporting you from Japan," and another fan expressed gratitude for the release of the full performance video.

Korean fans' support continued as well, with comments such as "Every member of CORTIS is full of charm. I hope they keep soaring," "The stage was so good, they're really talented," and "I'm proud of all five of them."

■ 11th Place in the October Netizen Awards... Ranking Changes Draw Attention

Meanwhile, as of the afternoon of the 27th, CORTIS ranks 11th in the Best Group category of the October Netizen Awards. With the ranking competition continuing ahead of the end of the month, it remains to be seen how the fans' energy witnessed at the concert venue will translate into the ranking competition.

This performance is significant in that it drew attention not only for the music and performance but also for the atmosphere of the venue and the audience's reactions. Comments in various languages including Korean, Japanese, and English show that interest in CORTIS is spreading across many countries. This support from global fans is expected to serve as a solid foundation for CORTIS to advance to even bigger stages.

[This article was written based on publicly released performance videos and viewer comments. The comments reflect the subjective opinions of individual writers and do not represent the evaluations of all fans. AI provided partial assistance.]