It's a throwaway series of TV mini-episodes to join the second and third Chihayafuru live-action films. They're pleasant. Nothing wrong with them.
EPISODE ONE (5:02) = the weakest, but it's still quite nice. It's Chihaya's birthday and the gang are trying to surprise her with a cake.
EPISODE TWO (4:39) = the gang's at Oumi Jinguu, having just come third in this year's school team nationals. (They're in their second year, which got skipped over in the films.) Has an amusing bit where everyone tries to imagine recruiting lots of first-years... and can't, because the only thing they can imagine is Chihaya scaring everyone off again by going berserk, as usual.
EPISODE THREE (4:32) = Harada treats Chihaya to some ramen, as promised after she got through an entire practice session without committing a single fault. Unfortunately, he doesn't have enough money, but is trying to hide the fact. Dumb, dumb Harada-sensei. This one's a laugh.
EPISODE FOUR (6:16) = stars Arata and Iori Wagatsuma, the movie-original character who's a composite of Inokuma and Arata's friend Yuu. She's quite funny, actually. She's shamelessly pushy in her romantic pursuit of Arata and uninterested in the rest of their karuta club, e.g. "at last, just the two of us" while the other three are still in the room.
"Harada-sensei is my boyfriend" made me laugh aloud.
EPISODE FIVE (7:26) = a direct lead-in to the third film, ending with a shot from it. The King and Queen challenge matches are about to start. Suou is stuffing his face with sweets, as usual. This one doesn't have any jokes, unless you count an error in my subtitles.
I enjoyed these. They're not trying to do anything with bits of the manga that got squeezed out of the films, but instead just some vignettes. They waste time peacefully. Sometimes they're funny.