上白石萌音 ONLINE LIVE 2020の高価買取価格

It appears that you are referencing a DVD release, specifically titled "MONE KAMISHIRAISHI ONLINE LIVE 2020," featuring the artist 上白石萌音 (Mone Kamishiraishi). The number "4988031421369" is likely the product's barcode, which is used for inventory and tracking purposes.
If you are looking for specific information about this DVD, here are a few details that might be relevant:
1. **Artist**: Mone Kamishiraishi is a Japanese actress and singer known for her work in film, television, and music.
2. **Content**: The DVD is likely to feature her online live concert from 2020, showcasing her performances, songs, and possibly behind-the-scenes content.
3. **Release Format**: DVDs typically include different formats such as audio and video quality, special features, and may come with album art and other collectibles.
If you're looking for a purchase option, review, or specific content details, let me know, and I can assist further!