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Translator notes:
1) Cranes appear in part of Vyn's visuals. Historically, cranes have always been seen as a symbol of long-lasting love, as they are monogamous until death.
2) Cross-cupped wine ritual appears in Marius' visuals. It's a part of Chinese weddings to symbolize the union, promising an everlasting love to one another, and acts as part of wedding vows. Sometimes, bitter wine is used, to symbolize that they will love each other through thick and thin (through sweet and bitter times).
3) Intertwining hair appears in part of Vyn's visuals. Tying a lock of the couple's hair together is also part of the Chinese wedding ceremony. 结发夫妻,to symbolize that they will always be together and that they are the first and official marriage (Ancient China did have a norm where men married concubines!)
4) Artem drawing Rosa's brows is played in the PV. It comes from a story of a general who would draw his wife's brows every morning. In the past, it's pretty set in stone that men are above women, so for a man to serve a woman in such matters was "not right", but the general believed that they should not bother with such trivial matters in their marriage. The reason he does this every morning is because he was childhood friends with his wife, and in his playful years, scarred his wife's eyebrows when they were young. Scars on a woman are frowned upon back then, which essentially affected her chances to get married. The general then married her and draws her brows for her daily. As such, this act symbolizes a deep love between a couple.
5) The red ball Luke holds in his wedding visuals is a flower ball. It's meant to bring prosperity and happiness.
6) Red candles are used in Luke's wedding visuals! On their wedding night, couples usually make sure that the candles don't burn out throughout the night, to symbolize a lasting love.