素颜已见仍然陪伴
[sù yán yĭ jiàn réng rán péi bàn]
Plain Face Has Been Seen But Still Staying signifies honesty, genuine friendship regardless of outward appearances. The term 'plain face' often refers to one’s true and unadorned look, meaning despite no makeup (figuratively) or all flaws seen (literally), this relationship/friendship still continues unwaveringly. So, it shows the importance and preciousness of sincerity.